Who does not the kinetic energy of an object increase with?
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Which among the following is not an environment friendly mode of producing electricity?
Sensitivity of potentiometer can be increased by
The centre of the reflecting surface of a spherical mirror is a point called the ___.
Calculate the work done by the force of gravity when a satellite moves in an orbit of radius 40,000 km around the earth.
Two particles with charges q1 and q2 are kept at a certain distance to exert force F on each other. If the distance is reduced to one-fifth, then the force between them is
AC is converted into DC by a
If the distance travelled by an object is zero, then the displacement of the object
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